Over four days – May 8, 9, 15 and 16 – the City of Rock, an open air venue located on the Las Vegas Strip, will welcome some of the biggest names in music including Taylor Swift, Bruno Mars, Sam Smith, John Legend, Metallica, Linkin Park, No Doubt, Maná, Ed Sheeran, Jessie J, Charli XCX, among others. Visit rockinrio.com/usa to checkout the full artist lineup.